Have you ever encountered these common problems during the operation of your dual-shaft shredder?

Have you ever encountered these common problems during the operation of your dual-shaft shredder?

Common Problems and Solutions for Plastic Shredders

1 Shaft Jamming‌

Cause‌: Hard materials or overload operation.

Solution‌: Immediately shut down, reverse the shaft to remove the jammed material. If ineffective, manually clean.

2 Uneven Particle Size‌

Cause‌: Damaged or worn screen.

Solution‌: Inspect and replace the screen.

3 Abnormal Noise‌

Cause‌: Damaged bearings or unbalanced shaft.

Solution‌: Requires professional inspection.

4 Equipment Failure to Start‌

Cause‌: Power issues, unreset limit switches, motor overload, or transmission mechanism jam.

Solution‌: Check power lines, close the hopper locking nut, replace blown fuses, inspect motor windings.

5 Shredder Blockage‌

Cause‌: Excessive feeding speed, blocked discharge pipes, or severe tool wear.

Solution‌: Adjust feeding speed, clean conveying equipment, replace tools.

6 Bearing Overheating‌

Cause‌: Uneven bearing seat height, insufficient or excessive lubrication, prolonged overload operation.

Solution‌: Adjust bearing seat or motor position, add lubricant on time and in proper quantity, reduce load.

7 Abnormal Vibration‌

Cause‌: Loose foundation bolts, damaged shaft bearings, or internal hard objects jamming.

Solution‌: Tighten foundation bolts, replace bearings, clear internal hard objects.

8 Significantly Reduced Output‌

Cause‌: Screen blockage, uneven feeding.

Solution‌: Clean the screen, adjust feeding speed.

9 Tool Breakage or Wear‌

Cause‌: Low material fragmentation or inability to normally crush.

Solution‌: Check tool and shaft operation, replace or adjust gaps.

10 Shaft Rotation Noise‌

Cause‌: Loose shaft, worn elastic rings.

Solution‌: Stop the machine, tighten the pin shaft nut, replace elastic rings.

11 Internal Knocking Sound‌

Cause‌: Non-crushable objects entering the crushing chamber, loose tool fixing screws.

Solution‌: Clear non-crushable objects from the crushing chamber, tighten tool screws.

12 Electrical Faults‌

Cause‌: Power issues, blown fuses, damaged electrical components.

Solution‌: Check power lines, replace fuses, inspect and replace damaged electrical components.

13 Hydraulic Drive System Failure‌

Cause‌: Contaminated hydraulic oil, cooler failure, oil pump issues.

Solution‌: Replace hydraulic oil, inspect cooler, check oil pump.

14 Reduced Output‌

Cause‌: Screen hole blockage, uneven feeding.

Solution‌: Clear residual material from the screen, adjust feeding speed.

15 Belt Flipping‌

Cause‌: Worn belts.

Solution‌: Replace V-belts, adjust pulleys to the same plane.

16 Increased Particle Size‌

Cause‌: Excessive gap between moving and fixed blades.

Solution‌: Readjust the gap between moving and fixed blades.

17 Lubricating Grease Issues‌

Cause‌: Insufficient, excessive, or contaminated grease.

Solution‌: Clean bearings, add appropriate lubricating grease.

18 Unbalanced Main Shaft Rotor‌

Cause‌: Assembly issues, uneven foundation.

Solution‌: Adjust assembly, ensure a stable foundation.

19 Clogged Discharge Pipe of Induced Draft Fan‌

Cause‌: Blocked or obstructed pipes.

Solution‌: Clear the induced draft fan discharge pipes.

20 Tool and Spacer Scraping‌

Cause‌: Worn or loose tools.

Solution‌: Check tool wear, replace or sharpen promptly.

Safety Tips‌: When encountering failures, immediately shut down and cut off the power, and promptly contact professional maintenance personnel for inspection to avoid safety accidents caused by non-professional operations.

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